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BOSTON MARATHON 2023

Pat Lachance

Bib: 24498•F

MA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Division (F65-69)
#0 / 221
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
9:36/mi
29:51
↑ 97↓ 3451.5%
10K· 6.21 mi
9:37/mi
59:44
↑ 79↓ 1380.4%
15K· 9.32 mi
9:52/mi
1:30:24
↑ 67↓ 78
20K· 12.43 mi
10:20/mi
2:02:31
↑ 106↓ 860.1%
Half· 13.11 mi
10:14/mi
2:09:30
↑ 19↓ 370.5%
25K· 15.53 mi
10:36/mi
2:35:13
↑ 66↓ 880.2%
30K· 18.64 mi
12:02/mi
3:12:35
↑ 181↓ 1480.2%
20M
12:09/mi
3:29:06
↑ 64↓ 500.2%
21M
13:42/mi
3:42:48
↑ 106↓ 241.6%
35K· 21.75 mi
11:23/mi
3:51:19
↑ 17↓ 861.7%
23M
13:00/mi
4:07:35
↑ 23↓ 630.6%
24M
11:49/mi
4:19:24
↓ 821.3%
40K· 24.85 mi
12:59/mi
4:30:30
↓ 200.3%
25.2M
14:27/mi
4:35:29
↑ 13↓ 160.2%
Finish· 26.22 mi
12:41/mi
4:48:25
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:09:30
Pace9:53 /mi
2nd Half
Distance13.11 mi
Time2:38:55
Pace12:07 /mi
📊Positive Split: 22.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:48:4829:519:3629:51
9:36
-
10K
6.21 mi12:18:4159:449:3729:53
9:37
+0:01
15K
9.32 mi12:49:211:30:249:4230:40
9:52
+0:15
20K
12.43 mi13:21:282:02:319:5232:07
10:20
+0:28
Half
13.11 mi13:28:272:09:309:536:59
10:14
-0:06
25K
15.53 mi13:54:102:35:1310:0025:43
10:36
+0:22
30K
18.64 mi14:31:323:12:3510:2037:22
12:02
+1:26
20M
20.00 mi14:48:033:29:0610:2716:31
12:09
+0:07
21M
21.00 mi15:01:453:42:4810:3713:42
13:42
+1:33
35K
21.75 mi15:10:163:51:1910:388:31
11:23
-2:19
23M
23.00 mi15:26:324:07:3510:4616:16
13:00
+1:37
24M
24.00 mi15:38:214:19:2410:4911:49
11:49
-1:11
40K
24.85 mi15:49:274:30:3010:5311:06
12:59
+1:10
25.2M
25.20 mi15:54:264:35:2910:564:59
14:27
+1:28
Finish
26.22 mi16:07:224:48:2511:0012:56
12:41
-1:46

Checkpoints & Pacing

📈Pace Line

Pace Progression

Track your pace changes throughout the race. Dot colors mark your quickest to easiest segments, relative to your own pace.

Fastest Pace

9:36 /mi

Average Pace

11:00 /mi

Slowest Pace

14:27 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:35:13

54% of race

Time at Steady Pace

1:14:13

26% of race

Time at Slower Pace

58:59

20% of race

Average Pace: 11:00 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

🎨Heatmap

Pace Heatmap

Where you sped up and eased off relative to your own pace across the race. Colors are relative to your own range, not to other runners.

Loading...
0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Click or hover over segments to see details

✨Sparklines

Checkpoint Splits with Pace Trends

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi11:48:4829:519:3629:51
9:36
#22405
10K
6.21 mi12:18:4159:449:3729:53
9:37
#22645
15K
9.32 mi12:49:211:30:249:4230:40
9:52
#22873
20K
12.43 mi13:21:282:02:319:5232:07
10:20
#23100
Half
13.11 mi13:28:272:09:309:536:59
10:14
#23124
25K
15.53 mi13:54:102:35:1310:0025:43
10:36
#23187
30K
18.64 mi14:31:323:12:3510:2037:22
12:02
#23502
20M
20.00 mi14:48:033:29:0610:2716:31
12:09
#23564
21M
21.00 mi15:01:453:42:4810:3713:42
13:42
#23677
35K
21.75 mi15:10:163:51:1910:388:31
11:23
#23702
23M
23.00 mi15:26:324:07:3510:4616:16
13:00
#23838
24M
24.00 mi15:38:214:19:2410:4911:49
11:49
#23880
40K
24.85 mi15:49:274:30:3010:5311:06
12:59
#23935
25.2M
25.20 mi15:54:264:35:2910:564:59
14:27
#23975
Finish
26.22 mi16:07:224:48:2511:0012:56
12:41
#24078
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF65-69Seg. OverallSeg. FemalesSeg. F65-69
5K3.11 mi3.11 mi224059078907823245(Top 87%)9471(Top 83%)9471(Top 4286%)
10K6.21 mi3.10 mi22645-2409172-949172-9422856(Top 86%)9261(Top 81%)9261(Top 4190%)
15K9.32 mi3.11 mi22873-2289275-1039275-10323245(Top 87%)9471(Top 83%)9471(Top 4286%)
20K12.43 mi3.11 mi23100-2279402-1279402-12723549(Top 88%)9661(Top 85%)9661(Top 4371%)
Half13.11 mi0.68 mi23124-249418-169418-1623751(Top 89%)9772(Top 86%)9772(Top 4422%)
25K15.53 mi2.42 mi23187-639453-359453-3523376(Top 88%)9606(Top 84%)9606(Top 4347%)
30K18.64 mi3.11 mi23502-3159646-1939646-19324524(Top 92%)10296(Top 90%)10296(Top 4659%)
20M20.00 mi1.36 mi23564-629693-479693-4724388(Top 92%)10281(Top 90%)10281(Top 4652%)
21M21.00 mi1.00 mi23677-1139758-659758-6524778(Top 93%)10491(Top 92%)10491(Top 4747%)
35K21.75 mi0.75 mi23702-259777-199777-1923946(Top 90%)10104(Top 88%)10104(Top 4572%)
23M23.00 mi1.25 mi23838-1369864-879864-8725075(Top 94%)10673(Top 93%)10673(Top 4829%)
24M24.00 mi1.00 mi23880-429894-309894-3024299(Top 91%)10328(Top 90%)10328(Top 4673%)
40K24.85 mi0.85 mi23935-559938-449938-4424929(Top 94%)10640(Top 93%)10640(Top 4814%)
25.2M25.20 mi0.35 mi23975-409961-239961-2325368(Top 95%)10859(Top 95%)10859(Top 4914%)
Finish26.22 mi1.02 mi24078-10310027-6610027-6625791(Top 97%)11067(Top 97%)11067(Top 5008%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 87%
×21story building
+97ft-345ft

Overall

23245

Females

9471

F65-69

9471

5K→10K

3.1 - 6.2 mi

Top 86%
×5story building
+79ft-138ft

Overall

22856

Females

9261

F65-69

9261

10K→15K

6.2 - 9.3 mi

Top 87%
×3story building
+67ft-78ft

Overall

23245

Females

9471

F65-69

9471

15K→20K

9.3 - 12.4 mi

Top 88%
×5story building
+106ft-86ft

Overall

23549

Females

9661

F65-69

9661

20K→Half

12.4 - 13.1 mi

Top 89%
×2story building
+19ft-37ft

Overall

23751

Females

9772

F65-69

9772

Half→25K

13.1 - 15.5 mi

Top 88%
×4story building
+66ft-88ft

Overall

23376

Females

9606

F65-69

9606

25K→30K

15.5 - 18.6 mi

Top 92%
×9story building
+181ft-148ft

Overall

24524

Females

10296

F65-69

10296

30K→20M

18.6 - 20.0 mi

Top 92%
×5story building
+64ft-50ft

Overall

24388

Females

10281

F65-69

10281

20M→21M

20.0 - 21.0 mi

Top 93%
×8story building
+106ft-24ft

Overall

24778

Females

10491

F65-69

10491

21M→35K

21.0 - 21.8 mi

Top 90%
×7story building
+17ft-86ft

Overall

23946

Females

10104

F65-69

10104

35K→23M

21.8 - 23.0 mi

Top 94%
×5story building
+23ft-63ft

Overall

25075

Females

10673

F65-69

10673

23M→24M

23.0 - 24.0 mi

Top 91%
×6story building
+12ft-82ft

Overall

24299

Females

10328

F65-69

10328

24M→40K

24.0 - 24.9 mi

Top 94%
×1story
+6ft-20ft

Overall

24929

Females

10640

F65-69

10640

40K→25.2M

24.9 - 25.2 mi

Top 95%
×1story
+13ft-16ft

Overall

25368

Females

10859

F65-69

10859

25.2M→Finish

25.2 - 26.2 mi

Top 97%
×2story building
+22ft-21ft

Overall

25791

Females

11067

F65-69

11067

Passing Analysis

Category:
Athletes Passed
517
Passed By
2190
Net Change
-1673
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22405
5K → 10K134374-240#22405#22645
10K → 15K70298-228#22645#22873
15K → 20K75302-227#22873#23100
20K → Half1640-24#23100#23124
Half → 25K80143-63#23124#23187
25K → 30K33348-315#23187#23502
30K → 20M2991-62#23502#23564
20M → 21M14127-113#23564#23677
21M → 35K1035-25#23677#23702
35K → 23M14150-136#23702#23838
23M → 24M1860-42#23838#23880
24M → 40K1570-55#23880#23935
40K → 25.2M242-40#23935#23975
25.2M → Finish7110-103#23975#24078
TOTALS5172190-1673
📊

Passing Visuals

Category:
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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing